Pretty surface crystals.
An example of the element Tellurium

Pretty surface crystals.
Description supplied by the source:
This is what happens when pure tellurium is melted homogeneously and allowed to solidify in a vacuum-fairly unbelievable crystals. This piece was broken off of a different disc in order to get some insight into the internal structure-surprisingly, you can see that the top crystalline surface is basically analogous to frosting on a cake-it looks completely separate from the main melted body. Beautiful crystals though, like ice on a window.Source:Ethan CurrensContributor:Ethan CurrensAcquired:30 April, 2008Text Updated:2 May, 2008Price: AnonymousSize: 2"Purity: 99.99%